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   <h1>class <tt>RadioGroup</tt></h1>
   <p>A&nbsp;RadioGroup is used to coordinate the activity of a group of <a href="RadioButton.html">RadioButtons</a>. It ensures that only one of the 
RadioButtons is on at a time, and provides a <tt>value</tt> property which 
is equal to the <tt>value</tt> of the currently selected RadioButton. It
also provides an <tt>action</tt> property which is invoked when the user
changes the selection.<br>
</p>
<p>You can iterate over the RadioButtons contained in a RadioGroup, which means you can use a RadioGroup directly in the <a href="Container.html#place_row"><span style="font-family: monospace;">place_row</span></a> and <a style="font-family: monospace;" href="Container.html#place_column">place_column</a> methods of a container.<br>
</p>

   <h2>Properties</h2>
   <dl>
  <dl>
    <dt><tt>value</tt></dt>
    <dd>The value of the currently selected RadioButton. Setting this property
 updates the states of the&nbsp;RadioButtons accordingly.</dd>
  </dl>
</dl>
<blockquote>
  <dl>
    <dt><tt>action</tt></dt>
    <dd>Action to perform when the value changes as a result of the user
clicking on a radio button.</dd>
  </dl>
</blockquote>
   <h2>Constructor</h2>
   <dl>
  <dl>
    <dt><tt>RadioGroup(items)</tt></dt>
    <dd>Constructs a RadioGroup containing the given list of RadioButtons.</dd>
  </dl>
</dl>
   <h2>Methods</h2>
   <dl>
  <dl>
    <dt><tt>add_item(</tt><i>item</i><tt>)<br>add_items([</tt><i>item, </i>...<span style="font-family: monospace;">])</span></dt>
    <dd>Adds one or more RadioButtons to this group.</dd>
  </dl>
</dl>
   <dl>
  <dl>
    <dt><tt>remove_item(</tt><i>item</i><tt>)<br>remove_items([</tt><i>item, ...</i><span style="font-family: monospace;">])</span></dt>
    <dd>Removes one or more RadioButtons from this group.</dd>
  </dl>
</dl>
   
<h2>Operations</h2>
<dl style="margin-left: 40px;">
  <dt><span style="font-family: monospace;">iter(</span><span style="font-style: italic;">group</span><span style="font-family: monospace;">)</span></dt>
  <dd>Returns an iterator over the RadioButtons contained in the group.<br>
  </dd>
</dl>
<p>---</p>

   
 
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